<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <ul><li v-for="(item,index) in list" :key="id">
            <span>{{item.id}}</span>
            <span @click="del(item.id)">{{item.content}}</span>
        </li></ul>
        <button @click="random">生成</button>
    </div>
    
    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script> 
    <script>
        const app = new Vue({
            el:'#app',
            data:{
                list:[

                ]
            },
            methods:{
                random(){
                    this.list.push({id:Math.floor(Math.random()*20),content:'删除'})
                },
                del(id){
                    this.list=this.list.filter(item=>item.id!==id)
                }
            }
        })
    </script>
</body>
</html>